Rolls for corrugating sheet material



, July 19, 1932.

J. T. AUGER ROLLS FOR CORRUGATING SHEET MATERIAL Filed Oct. 24, 1931 Inventor:

Jose ph T Huger 't tornegs.

Patented July 19, 1932 UNITED STA Es YPATENT OF I E 1 JOSEPH T. AUGER, OF MINNEAPOLIS, MIN'N'lli1S0TA, ASSIGNOR OF ONE-THIRD TQII. OJ

VOYER AND ONE-THIRD TO B. H. MONAHAN, BOTH OF MINNEAPOLIS, MINNESOTA.

ROLLS ron CORRUGATING srinn'r Mnzr iiunn Application filed October 24, rear. Seria1I To 70,795. cf

My invention relates to rolls for corrugating sheet material. While not limited in regard to the kind of material, I regard the invention particularly applicable for use in 5 connection with sheet metal. An, object of the invention is to provide a device which will corrugate the sheet material in such manner that a plurality of diagonally extending ribs will be formed in the material thereby greatly strengthening it both lengthwise and crosswise.

The fullobjects and advantages of my invention will appear in connection with the detailed description thereof, and the novel' iea'tures of my inventive idea will be particularly pointed out in the claims. I

In the accompanying drawing which illus trates a practical embodiment of my invention, Fig. 1 is an elevational view of one of the rolls, Fig. 2 is an elevational view of one of the elements or ribs of the roll, Fig. 3 is an end elevational view as seen from the line 3-3 of Fig. 2, Fig. 4 is a view in vertical section showing the two rolls as employed in shaping sheet material, Fig. 5 is a plan view of the material which has been shaped by the rolls, and Fig. 6 is an end view of the material as seen from the line 66 of Fig. 5.

Referringto the construction shown in the ';;0 drawing, it will be understood that I provide two mating rolls 10 and'12 which are duplicates of each other, the roll 10 as shown in .Fig. 4 being an upper roll andthe roll 12 being a lower roll.

spaced around the circumference of the .roll. As will'be understood from Fig. 1, the two between the rolls for the purpose of corrugat-i ing'the material, supports 20 and 22are pro-' These two rolls are geared together for rotation in unison by intermeshing gears 14 and 16 secured to the respective shafts of the rolls, these shafts being mounted in well known or suitable man-j ner. Each roll is provided with a plurality of raised elements or ribs 18, which are shown. as seven in number, these ribs being equally the roll. Each rib may be considered as con 'sisting of two similar parts which start at the ends of the rib and extend in inclined relation towardeach other so as to meet at I the middle'of therib, the apex' 19 where the two parts meet being rounded. The ribs are preferably soconstructed that the middle of each rib is located half way around the roll from the ends of therib. In other words, the middle of a rib has a 180 relation to the endsthereof. It will therefore be understood that, each rib consists of two half turns ofa helix which are oppositely disposed with relation to each other 'andmerge into-each other midway of the length of the roll so that one-half of, the rib is right-handed and the other half is left-handed. From Fig. 4:,

it will 'be'sleenthatthe ribsof the rolls 1O and 12"interfit with each other,with the ribs "of each roll'extending into corresponding depressionsof the other rollso that the surfaces of the two rolls at all corresponding points are equidistant from each other. "In order to feed sheet material indicated at S vided at'opposite sides ofthe rolls adjacent the plates where the rolls are spaced from each other bya distance-substantially equal to the thickness of the material which is. to :be corrugated.

The operationand advantages of inventionwill be'obvious in connection with the foregoing description.- By comparing Fig. '1 with Fig. '5',it will be understood that when a plate of the sheet material '53 is passed between the rolls 10 and12, the sheet nia'terial I will be corrugated so that it is provided with ribs R alternating with depressions D. The ribs are inclinedat an angleto the two oppo site sidesfof theplatejso that corresponding y j rib portions convergetowardfa niedian line.

'When the angle of inclination is 45 asshown, the plate will be strengthened the same.

amount for both the longitudinal and transverse axes thereof. By changing the angle and whose. inner ends meet with rounded "-has a plurality ofspaced ribs thereon, each v rib consisting of'two 'portionsin the-form of right'and lefthelical turns whoseouter ends are located adjacent the outer ends re- 1 spectivelyof "the roll and whose, inner ends; meet with rounded apiceszsubstantially' mid- 7' 1 rounded apices 19 on the roll.

of inclination, the plate may be strengthened more in one direction than in the other. If-

' the two rib portions were caused to meet each other in theform of sharp apices, there would be a line of weakness coincident with the median line'. It is for the urpose of preventing this. weakness that I I claim l. A device for corrugating sheet material a provide the signature.

spectively of the roll, and whose inner ends meet in apices between the ends of the roll, 7 v

and means for causing said rolls to operate' with the ribs of each roll mating in spaced relation with the depressions of the other roll. 7 j V V In testimony whereof hereuntoaffix m comprisingtwo similar rolls each of which has a plurality of spaced "ribs thereon each rib consisting of two portions in the/ 01111 of right and left helical turns whose outer.

ends are located at corresponding points with relation to the circumference of the roll and whose inner ends meet with'r ou-nded apices having a substantially 180; relation 1 to said outer ends, andrmeans forcausing said sions ofthe other roll.

2 .-,A device for corrugating sheet inaterial comprising two similar rolls each of with relation to the circumference of the roll 'rolls to operate withthe-ribs of each roll mating in spaced relation withthe depres- JOSEPH T; AUGEB. r

apices substantially midway of the length of the roll and means for causing saidrolls to operate with the ribs of each roll mating in spaced relation the other roll.

with the depressionsof r ,3. device for 'corrugatingv sheet material 1 V comprising two similar rolls each of which way of the length of the roll, and means for :causing said rolls to operate with the ribs V of eachroll mating in spaced relation with. i the depressions o f'the other roll,

4. A device for corrugating sheetmaterial comprising two similar rolls each of which I has a plurality of spaced ribs thereon, each V riblconsisting of'two portions in the form ends are located adjacent the outer ends respectively of the rolland-whose. inner ends meet withrounded apices between the ends of the roll andmean for causing said'rolls I .of right and left'helical turnswhose outer] to operate withthe ribs of each roll mating;

I has a plurality of spaced ribs thereon,- each.

.in' spaced relation with, the depressions of.

the other rol 5. A device for corrugating sheet material comprising two similar rolls "each of which 5 rib consistingof two portions in the form-- ofright and'left helical turns whose'outeri 

